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Brass in-line air separator with automatic float vent

Taco Inc

Taco Inc 49-125T-2 Air Separator 150psi 240 Automatic

SKU CH-7M2T-SR8X2

Brass in-line air separator for hydronic systems rated to 150 psi and 240 automatic operation

  • Removes trapped air with automatic float vent
  • Brass body resists corrosion in hydronic systems
  • Handles 150 psi maximum working pressure
  • Operates down to 25 °F minimum temperature
  • 1/2 in NPT female expansion tank connection

Purpose and fit

The Taco Inc 49-125T-2 is an automatic air separator built for hydronic heating and cooling systems. It removes entrained air from water or glycol circuits to maintain efficient heat transfer and quiet operation.

Build and connections

The brass body provides corrosion resistance for closed-loop applications. An in-line configuration with a 4 1/2 inch port spacing simplifies installation in existing piping, while a 1/2 inch female NPT connection accommodates a standard expansion tank.

Thermals and pressure

Rated for a maximum pressure of 150 psi and a minimum fluid temperature of 25 degrees F, the unit handles typical boiler and chiller conditions. A float-type vent discharges collected air automatically without manual intervention or external power.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $140.99
Pricier than about 75% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameTACO

Questions about this item

What is the maximum allowable pressure for the 49-125T-2 air separator?

The maximum allowable pressure is 150 psi, which limits the operating pressure in hydronic heating and cooling systems.

What are the expansion tank connection details for the 49-125T-2?

It has a 1/2 in female NPT expansion tank connection for attaching a standard diaphragm expansion tank.

How is the 49-125T-2 installed, and what step is often missed?

Install it in-line with 4 1/2 in between inlet and outlet ports; the automatic float vent must be oriented vertically to purge air correctly.

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